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i have a 305 4 barrel with headers and h.o 305 heads(centerbolt, i think it is a h.o 305 but im not sure), cast iron intake, i think its got 9.5 comprestion ratio and a roller cam i put these numbers through my dyno program and it said it will make 287hp and 338fp at 4500 :eek: these seems a bit high to me

even if i change around the compression ratio it still seem high to me, any thoughts on what its real hp and tq is?:confused:
 

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I though those motors had something 7.5 compression?

My 305 with headers four barrel, new cam etc. was at about 200 or 225.

Some fun but not much.

Ray
 

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Discussion Starter #3
I though those motors had something 7.5 compression?

My 305 with headers four barrel, new cam etc. was at about 200 or 225.

Some fun but not much.

Ray
i think its HO and the books say they have 9-9.5 compression but 225 hp sounds right
 
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