TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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i need abit of advice on this......what you think it may make on the motor, and how hard this would be to tune
ZZ4 shortblock possibly, think its 9.6 to 1 comp with 64 cc
comp cams XFI efi cam 218/224
trick flow heads 195cc
accel superam base
AS&M siamesed runners.
base on my searching around, i think that should be good for mid 12's, puttin out about 375hp or so, and pull to 5500rpms. which is where i want it to be
maybe i should try for 10 to 1 or abit higher compression...
what about regular AS&M large tube runners?
if i do go siamesed runners, should i siamese the base at all?
See my signature. Similiar set up but with Trickflow heads and ZZ9 cam which is smaller. I should be in the mid 12's by the end of the year with a little tweaking here and there.
__________________ Best of 11.57 and 115.73 mph(1811DA). Motor: Dart SHP block 368ci, AFR Comp 195cc heads, 11.1:1 comp, highly modified TPI 1st style SLP runners, moded GM plenum and First Injection TPI intake manifold, Mike Jones 3/4 race cam, Yank PT4000 converter, Dyno Don 1 3/4" shorty headers, Dyno Don custom exhaust, custom cold air intake, AS&M monoblade throttle body. Meziere electric water pump. Mufflex 3.5" exhaust catback. Magnaflow 3.5" muffler#12909. Kevin91Z Tune. 4L60E installed. Now 420RWHP, 417RWTQ with new motor.
No. People here in SoCal are running the 218 degree cam with modified TPI. I'm looking into the XFI cam myself. If you get the proper Trickflow heads with the double springs you can run the XFI cam. Allen
__________________ Best of 11.57 and 115.73 mph(1811DA). Motor: Dart SHP block 368ci, AFR Comp 195cc heads, 11.1:1 comp, highly modified TPI 1st style SLP runners, moded GM plenum and First Injection TPI intake manifold, Mike Jones 3/4 race cam, Yank PT4000 converter, Dyno Don 1 3/4" shorty headers, Dyno Don custom exhaust, custom cold air intake, AS&M monoblade throttle body. Meziere electric water pump. Mufflex 3.5" exhaust catback. Magnaflow 3.5" muffler#12909. Kevin91Z Tune. 4L60E installed. Now 420RWHP, 417RWTQ with new motor.
14psi, pump gas street tune 
