FM-13 # what do you think
I have a 98 with 01 heads FM-13 SLP LT and ORY with a proflow catback SLP lid I bought the heads cam from a guy making 378RWHP through Mac mid lengths I figued he was choking it but he had the ls6 intake i have the ls1 I think that was the big diffrences
Only reason I started the thread is someone said they thought I would be 430RWHP if that is the case I would be very happy but I doubt it
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Only reason I started the thread is someone said they thought I would be 430RWHP if that is the case I would be very happy but I doubt it
Just did 433 (sae) with mods in sig yesterday. drivetrain loss is greater too

get some good heads and intake and this setup will be great. I just did 473/441 with this cam. With all the right mods and good tune, I see no issue with this cam puting down 430 cam only, you just dont ahve all the mods needed for it. I would think you would be solidly near 375-385 if the tune is good. That LS1 intake is going to kill it. Definately has potential though
The # 's were 371RWHP and 365RWTQ .
I am happy with that there is still room for improvement I still have the ls1 intake and need a pulley that should bring the # up a bit .
I will try and post the graph a bit later
The # 's were 371RWHP and 365RWTQ .
I am happy with that there is still room for improvement I still have the ls1 intake and need a pulley that should bring the # up a bit .
I will try and post the graph a bit later


