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Block is 69 vintage. Original engine. Would 3 inch exhaust be too big? Engine should make about 550 hp



I like this combo alot.

I think it is a nice real life build for a 354 geared street car.

BUT, I think you will need more cam(duration) to see over 500hp.

The rest of the motor is ready for it (worked heads etc)

I don't think you want more cam with these gears, and a 4 speed street car. I'm just saying this will probably be just a hair under 500.

And dont' worry about the comp being too high. Heads are aluminum, so it won't get too high.