confused??????

[psgp]

The stock 3/8 line works out to "roughly" 6AN, more then enough at your power level, a "decent" mechanical 110pump will be more then sufficient.
Making the switch at your level is a simple one and well worth it given your not alble to rebuild at this time.
There's lots of misinformation out there about the corrosive properties of E85 and its BS
Jet up 6-7 sizes, if this is a strip only car, lock your timing at 38*(E85 only) and go have fun.

gonna check into that and also been hearing that we can use the octane 104 boost whats your thought on useing that?? thanks

 

[bygddy]

Octane boost is nothing more then snake oil, lots of guys claim its magical effects, but reality is its so diluted with the fuel in tank that the percentage of octane increase in incremental.

 

[BPTTONE420012]

yeah that crap sucks, not a supplement for true octane, if you're lucky it might raise your octane by a 1/4-1/2 a point... just look around, i'm sure you can find a station that sells 100+ octane...

 

[ITh4n4tosI]

Just skimming through but I feel that your set up is to slow for what its suppose to be. I got a 1994 chevy k1500 that has been swapped to the '98 drivetrain its got a 355 with factory intake, factory heads, a mild comp cam with factory rockers, shorty headers and a cold air. Nothing but a mail order tune and my truck runs mid 15's using a stock stall, 4l60e and a 14 bolt weighing at 5,000lbs. Just my input but i agree with everyone else I don't think its a single problem that you have I think its just your whole top end assembly in general thats not working together well.

 

[GT_80]

Not trying to be a dck here, but if the pistons were actually contacting the heads....its time to pull it down and rebuild, period....the math on this motor is way wrong, compression is way wrong, cam is way wromg....you could spend less on a 305 and go faster. You want to do a budget build?
I used a stone stock bottom end smogger 350, home ported 416 casting 305ho heads, shim head gasket (0.015)
Small lunati "bare bones" cam, used performer RPM intake, stock Qjet Carb, reworked stock HEI, mid length headers to custom side pipes. Stock TH350, 4.11 gear.
Went consistent 13.40-13.30's in a fat C3 Corvette.
I had all of $500 in the motor. I had every intention to spray it into the low 12's but moved on to another project before I got the chance.
Its still being used and abused by the new owner 3 years after I built and sold it.
It doesn't have to be expensive to be "quick" and reliable, just has to be well thought out and pay attention to the details.

ditto! I have done 3 or 4 motors in the last 3 years... Mostly using 305HO heads, the 416 and the 601 castings (currently running the 416's in my cutlass) and I have had good luck.

Best setup I ever had was a .060 over 4 bolt main 350 from a 1971 truck, flattop pistons .040 in the hole, 10.3:1 compression, 59cc chamber 416 heads that I ported and polished and cc'd myself, Crane energizer .500 lift 302 duration 106 overlap cam, weiand single plane intake with a 1" 4 hole spacer, speed demon 750 double pumper, 3000 stall converter, th350 trans, 4:10 posi rear end, I ran a 13.59 at 97mph in a 1980 Chevy c10 on 26x10 slicks. The truck weighed 3700 lbs with me in it.

Racing is an art not a science... Building a motor is a science. You have to have everything in your motor matched for compression ratio, head flow, intake match heads and cam, enough cfm, right timing... tuning the motor after it's built is again an art. I ran my distributor locked out at 42 degrees timing and it loved it. on 93 octane pump gas. I ran 100 octane race gas and I went slower.

 

[ITh4n4tosI]

Octane rating on gas doesn't really give you any power. If you don't need a higher octane don't run it because it burns slower so you need to advance your timing more. The power difference comes from when the engine pre-detonates from a lower octane gas, and when you switch to a higher octane it raises the ignition temperature of the gasoline helping stop pre-detonation which is where the "extra power" comes from. If you can run on 87 or 89 depending where you are then I say run. Its the most explosive gasoline you an get out of a pump

 

[bygddy]

Octane rating on gas doesn't really give you any power. If you don't need a higher octane don't run it because it burns slower so you need to advance your timing more. The power difference comes from when the engine pre-detonates from a lower octane gas, and when you switch to a higher octane it raises the ignition temperature of the gasoline helping stop pre-detonation which is where the "extra power" comes from. If you can run on 87 or 89 depending where you are then I say run. Its the most explosive gasoline you an get out of a pump

Its an 11.1 iron headed motor....its not running on 87, 89, or anything other then race gas or E85.
That's where this all started in the first place.

 

[ITh4n4tosI]

Octane rating on gas doesn't really give you any power. If you don't need a higher octane don't run it because it burns slower so you need to advance your timing more. The power difference comes from when the engine pre-detonates from a lower octane gas, and when you switch to a higher octane it raises the ignition temperature of the gasoline helping stop pre-detonation which is where the "extra power" comes from. If you can run on 87 or 89 depending where you are then I say run. Its the most explosive gasoline you an get out of a pump

Its an 11.1 iron headed motor....its not running on 87, 89, or anything other then race gas or E85.
That's where this all started in the first place.

Yes but I was referring to the guy before me that said his car ran worse on 100 octane compared to 93. And you can try a colder spark plug to get it to run on pump gas

 

[psgp]

update put motor back together everything good sounds good ran 14.16@ 93 mph was best last nite on pump gas 93 no issues at all i did go with a colder plug only change we made at track was went up in jets 1 size so far so good thanks for the input

 

[GT_80]

update put motor back together everything good sounds good ran 14.16@ 93 mph was best last nite on pump gas 93 no issues at all i did go with a colder plug only change we made at track was went up in jets 1 size so far so good thanks for the input

Thats a respectable time on street tires!