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Post by mercmaster on Sept 20, 2010 10:54:49 GMT -5
Tried something different... Just finished installing the Holley 500 2 brl on a mainly stock 302. Feels like a 10-15 hp difference. No manifold change needed. A definite improvement and mpg still at 18-20 running 68 main jets.
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Post by Rob on Sept 20, 2010 14:45:48 GMT -5
Sounds good, a stock 302 probly couldn't take much more than that under normal circumstances anywhoo.
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Post by mercmaster on Sept 21, 2010 10:47:49 GMT -5
The Carb was $200.00 on E-bay, rebuilt & Guaranteed to bolt on and go. Outta the box it ran good, but i suggest swapping the 76 jets down to 68-71 depending on outside temp. This time of year in Mass. the 68's work perfect - plugs are golden brown and no spit-up coming out of the exhaust. The throttle response is immediate and makes the 302 feel like a bigger engine. I would recommend it if your motorcraft or autolite carb is getting tiredand you want to stay 2 barrel. I set the idle with a vac. guage, and am at 19 in. vac. So far mpg is still the same unless you put your foot into it, which is often.
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Post by Rob on Sept 21, 2010 23:33:19 GMT -5
Not too bad I guess, specially if it runs without a lot of tinkering.
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Post by roy on Sept 22, 2010 11:12:03 GMT -5
You ever see Currie's(Currie rear ends) 65 Mustang he built for Panamerica racing, which is on the worst roads in Mexico.
Rules are quite clear & you have to run a 2 barrel, at least that's what he's running, i think its the rulebook.
Anyway, the little 289 puts out 450 plus HP & says the throttle response is just awesome with a 500cfm 2-barrel. He did mention getting a few mpg less than with a 4 barrel tho, i guess at WOT that 2 barrel is movin the fuel!
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Post by doberdawg on Dec 27, 2011 15:36:37 GMT -5
How does your choke work?
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