LO3 rebuild (HP estimates?)

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12-14-2014, 05:32 PM

#401

1991sleeper

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Car: 1991 firebird

Engine: TBI 305 (built)

Transmission: T5

Axle/Gears: 4.10

Quote:

Originally Posted by Fast355

Performer RPM would be a great overall matchup with those ports and RPM limits in mind. The intake ports of the head are only 0.04" wider and 0.07" taller than the performer rpm intake ports.

Sounds like a perfect match lol .. easily port matched with it that close n ain't gotta touch heads .. right now the intake ports are way bigger than the head ports cause I matched em to the LO3 heads before I decided on the trick flow heads .... I believe that is hurting it a little on mid - big end