HELLO I am putting bender pipes on my viper and I also bought a mpi peak performance head with 22cc domes but when I acalled bender he told oe I can't run that small of domes with the pipes without running race gas. So I called mpi he told me I would be fine running that set up running 91 Octane andtold me not to sweat it. SO I guess I an leaning to just running it like mpi says. BUT I am wondering what you guys think any advice?
ottawaair
New member
My head is cut to 21 cc, aaen pipes, 91 octane. No issues. Running around .058" squish. Srx base gasket, opticool head gasket.
WHat elevation are you at?
ottawaair
New member
West Michigan & northern Michigan, Basically close to sea level. 0 - 2000 ft. I guess u would say.
OK well that's basically the same as me I an in nd. THanks a lot for the help. I figured I would be fine but better be safe than sorry.
mopar1rules
Active member
bender was assuming you mean 22cc flat plate volume, which is too tight for pump gas, but them peak heads are 22cc installed trapped volume and you will be just fine on pump gas. no race gas needed.
O ok that's great news exactly what I wanted to hear thanks a lot.