Hi Guys,
I want to ask if you guys have lost significant mph by trying a smaller cfm carburettor.
you guys have already helped me out, but i think my car doesnt like this carb.
my car will still hesitate, launching or in nutral, the holley 750 is full mechanical, iv tried every combo with squirters, nozzels, pump cams, etc.
best but not perfect with massive 42cc squirters, but then fouling plugs. carb now set back to stock. its almost new. same problem.
I have a mis matched set up, small cam, low compression but massive heads because i got them for almost nothing.
750 non vaccum, i feel like my combo doesnt want to pull or suck the air in hard enough
i want to bolt on other carbs just to see if smaller cfm helps, more importantly, maybe a vaccum carburettor.
theres some dirt cheap 450cfms for sale, i have the rebuild kits, vaccum, let me know what you guys think.
i believe a smaller, but more imporatly, a VACCUM carb could help both tuneup and my 60ft a touch, but i dont want to loose like 3 or 4+mph.
my other malibu had this issue with the 750 Q jet, 383cu.in, i tightened the rear flaps on the back (allenkey adjustment)
and car leaves crisp and hard (for whats in it). that ones 3000stall 4.11 26" tire.
thanks guys!
set up im trying to tune:
81 malibu
355 dish piston
dart iron eagel 64cc 215 runners
106lobe flat tappet 510lift 242/250@50
open plenum offenhouser old intake
(not very big)
1 inch carb spacer
vaccum is 10
750cfm Hp holley full mechanical
no accesories or belts
electric water and fan
8" 5000 stall
4.56 gears
28" slick
shift and trap around 6800rpm
other than that issue car is fun runs great
canada october cool
11.67 @ 113mph
1.57 60ft (best one)
I want to ask if you guys have lost significant mph by trying a smaller cfm carburettor.
you guys have already helped me out, but i think my car doesnt like this carb.
my car will still hesitate, launching or in nutral, the holley 750 is full mechanical, iv tried every combo with squirters, nozzels, pump cams, etc.
best but not perfect with massive 42cc squirters, but then fouling plugs. carb now set back to stock. its almost new. same problem.
I have a mis matched set up, small cam, low compression but massive heads because i got them for almost nothing.
750 non vaccum, i feel like my combo doesnt want to pull or suck the air in hard enough
i want to bolt on other carbs just to see if smaller cfm helps, more importantly, maybe a vaccum carburettor.
theres some dirt cheap 450cfms for sale, i have the rebuild kits, vaccum, let me know what you guys think.
i believe a smaller, but more imporatly, a VACCUM carb could help both tuneup and my 60ft a touch, but i dont want to loose like 3 or 4+mph.
my other malibu had this issue with the 750 Q jet, 383cu.in, i tightened the rear flaps on the back (allenkey adjustment)
and car leaves crisp and hard (for whats in it). that ones 3000stall 4.11 26" tire.
thanks guys!
set up im trying to tune:
81 malibu
355 dish piston
dart iron eagel 64cc 215 runners
106lobe flat tappet 510lift 242/250@50
open plenum offenhouser old intake
(not very big)
1 inch carb spacer
vaccum is 10
750cfm Hp holley full mechanical
no accesories or belts
electric water and fan
8" 5000 stall
4.56 gears
28" slick
shift and trap around 6800rpm
other than that issue car is fun runs great
canada october cool
11.67 @ 113mph
1.57 60ft (best one)
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