Chambered mufflers kill scavenging but those factory manifolds killed the flow anyway...
I'm wondering if the 4 year span between sessions is a factor.
I'm wondering if the 4 year span between sessions is a factor.
What did you do to your G-Body today 2024
- Thread starter 64nailhead
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Not really.
You need a cross over, this case with a lower RPM Engine I recommend an H-pipe.
Still need to lean it out, 12.8:1 or so.
Weather and type of dyno are major factors. Low power condition can be due to detonation with that high of timing. Dynamic compression probably isn't that high but still a big factor to know here.
Freshly rebuilt 355 between the fenders and a new set of drag wheels and tires!
I Like your Plate! LOL Hello from Hbg
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Went to the closest U pull it today and the pickings were nothing. No 80's GM at all, only 80's stuff was a Ford station wagon and a Mercedes sports car. Even the pickings for Ford Panthers were slim, they only had two. They even hardly had cars period. Most of the vehicles in there now are trucks, vans, SUVs, and crossovers.
It's been nice here the last two days so I drove my Regal to work both days.
I am on the road all day in the work truck so my counter guy gets asked questions about my car all day long and he doesn't know a thing about cars.
I am on the road all day in the work truck so my counter guy gets asked questions about my car all day long and he doesn't know a thing about cars.
I had headers on it during the previous dyno test.
Also, perhaps. Doesn't feel down on power significantly.
I went and looked back through pics, I had headers installed before the last dyno session. Only things that changed was timing, carb tune, and adding mufflers.to summarize:
you increased timing, got a better AFR ratio, better exhaust system
.....and you LOST power and torque?
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