2002 firehawk
Since you have heads and a cam already, you are going to need to be very careful about how much boost the engine builds to keep it at, or under 500 rwhp (as measured on a Mustang Chassis Dyno, 540 to 550 rwhp on a DynoJet), unless you have added forged pistons and better rods. Bob
http://www.exoticperformanceplus.com...php?service=66
It took quite a few dyno runs, many miles of driving, several different dragstrips to get the 126,000 mile engine to crack the number seven piston. We were surprised it lasted as long as it did. Bob

