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bulldawg24 Dec 24th, 03, 5:31 PM I am building a 1967 427 L88 block. ive got speen pro forged L88 replacement pistons. truck rods. 781 heads ported and polished. big valves. stealth manifold. 850 demon carb. harland sharp roller rockers. CC 292H cam. what do you think. i am putting it into a 69 camaro. whats a good guess on the hp and et. oh, it will have a muncie and a dana rear with 4.11 gears EDDY merlin Dec 26th, 03, 12:26 PM Hello bulldawg, What is your compression(10.25:1)???,and what is a big valve?(2.19/2.30/2.50 int valve). :confused: Are your heads heavy or mild ported? EDDY merlin. EDDY merlin Dec 26th, 03, 12:37 PM Hello bulldawg, What is your compression(10.25:1)???,and what is a big valve?(2.19/2.30/2.50 int valve). :confused: Are your heads heavy or mild ported? EDDY merlin bulldawg24 Dec 26th, 03, 3:24 PM sorry the compression is around 10.25. the valves are 2.19. heads are mild ported i would say. thanks for the help guys. EDDY merlin Dec 26th, 03, 4:00 PM He' bulldawg24, 427ci:Peak hp=538 hp@6000 rpm. :Peak torque=544 lb/ft@4500 rpm. In a 1969 camaro:....1/4mile result= 10.614 secs. :....trapspeed=121.6 mph. :D *This is dyno with a comp-cam 292H, (With a gm muncie close ratio,4.11 rear-gear). Good luck ! graemlins/thumbsup.gif EDDY merlin. | ||