Hello...Newbe here

Is it the PSI with the cat bottom or whats left of it? I would look for some XCR or Thundercat pipes and see if you can get them to work. Like buddy above stated with the ves pipes working on his 1155, Well i was running a D&D 720 small block with PSI 600 pipes and it worked way better then the D&D pipes. I know in ALBERTA, Canada there is NNP(neilspowerpipes) if your canadian he builds some really nice pipes and they work well also they almost look like aaen pipes but seem to work better. I know in my area there is a guy running the 1800 in a 09 IQR chassis and they cant seem to dial the motor in and always seem to be poping pistons so i would say jet to the moon and start dialing back.