crate engine bolt on ?'s...

[draggin49]

Recently picked up a crate motor.it already had a stock style intake and stock manifolds in place.Its a gen 1 vortec crate motor , flat tappet cam.

Should i spend the $$ on an aluminum dual plane and a set of headers?? Is it worth the performance gain?? I think I'd be looking at around $400 for the pair.

I have a comp cams xe model /liftets layin around. Worth opening up the motor and swapping out the stock flat tappet??

Or just leave all of it alone , throw a carb on it and call it good.

Just trying to see what kinda difference in hp/tq roughly it'd be with all those items vs leaving it all as is. Thanks.
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