i have recently swapped my c1 222/222 .570/.570 112 for a bullet 242/248 .603/.603 112 and have tuned my air to fuel via wideband to 12.5~13.0 and have slowed down i have a 5200 8" ptc 4.11 w/28" radials
was 1.40 60' 10.70's 122 now best of 1.44 60' 10.75 121 with only and same weather i do still run stock injectors but my afr looks good
please help ive been tuning for 3 weeks and going crazy

 

what kind of power are you making on the dyno? what is your tq levels? what does your converter flash to?

 

th400? i would check the tune, or have it checked by someone else. probably help to get it on the dyno and see whats going on with the thing.

 

th350 flashes at 5200 im not a fan of dyno my track is my dyno i have no idea of horsepower

 

getting it on the dyno just to see what its doing would be a good idea. obviously at this point you track dyno says your bigger cam and new tune aint worth ****. get it checked out man, it'll be worth it. whats the car weigh?

 

3200 lbs if my afr is where it should be would there be any advantage to bigger injectors

 

your trap speed is kinda low buddy for your weight so i'd check her out there's something wrong either Tranny or Tune .

peace

 

What is your injector duty cycle?

 

What heads are you running and is this on spray? I have a hard time believing a 10.68 @ 123 with a C1 cam. Maybe with one of the bigger cams. Are you 100% positive the previous cam was a C1?

 

unless mti sent me the wrong cam and stamped it wrong it is a C1 and ive checked the lift with a caliper and its dead on but i have no way to check duration. and i have nothing to hide or lie about 10.68 @123 for one i only bracket race and occasionaly street events and i dont want nething to do with nitrous that is only good to break parts.

 

change the shift points ....dyno your car and shift about 200-300 rpm after the peak hp

 

Uhm, I think 2000-3000 rpms is a little excessive , I think you meant 200-300 rpms.

 

Which heads? If this is a cam only setup then you have the most impressive cam only car I've ever heard of.

 

yeah 2000-3000

 

it is 241 castings with mild porting and stock combustion chamber

 

ttt please guys i need some help like if it could be my injectors or not is there anything i am missing for the right combo

 

TAKE IT TO A PROFESSIONAL AND LET THEM CHECK IT OUT.... Futral and Thunder are both in Louisianna

 

if your on a stock fuel pump and injectors your nuts weather thats the problem or not, i was running an excessive duty cycle cam only.

btw, is this waguespack? your dad drives the old vette and i think your name is scott?

 

what injectors and fuel pump are you runing

 

28's and stock pump, btw, look at my other post above and see if thats you