Sounds to me like you're doing your homework. Thats always a good thing. What compression ratio are you planning on running?
The first cam sounds like a good compromise. The second might be a little too much. ie; requiring a high stall convertor and higher compression. If I remember correctly the Performer"s max RPM is around 5500. So you would not be able to take advange of the 2nd cam's high end power anyway.
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1970 Stang Conv:
en:Boss351 (balanced/blueprinted)
mech cam(240*@.050/.540 lift)
Scrw in studs/comp cams rllr rkr
Mldn valves 2.19in 1.71ex
ported polished cc'd hrdnd ex
Keith Black FT pistons(10.25/1)
Weiand Excellorator manifold
Holley700 DP mech 2nds
MSD 6 box and Dis
Headers/2 1/2 inch duels
tr: modified FMX
re:9-inch/3.89 limited slip
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