you need gears bad. Its a dog with 3.73 and 32" tires

 

Get a 3600 or bigger stall and some 4:56 gears and you'll be golden. Won't be able to tow anything but you'll be able to spin the tires!!!

 

The problem just very well may be WHO did your heads...... I bet you'd run better with stock heads than the TSP pieces. It wouldn't be the first time I've heard of someone's stuff running out better with stock untouched heads than the TSP stuff. Might want to throw a set of stockers on and amaze yourself.

 

well that sucks with the heads, they look like a decent job, i would be really pissed though if the stockers ran better, but anyhow my stockers needed a valve job, hence why i bought the PRC's. the TM is turned off and i dont know what timing is as synergy tuned it just the other day. now dont get me wrong, it does run strong, i just figured it would run harder thats all. was also hoping for closer to 400hp on the dyno, now i do know it is just a number and doesnt mean ****, but was hoping to see bigger numbers, and kinda thought the peak hp would be a little higher in the rpm than 5800.

 

jeez with a 32" tire rollin on 22's i can blister the tires if i want too! all my mods are in my sig, you need gears!

 

yeah but with 4.56's i would kill my economy

 

Who tuned it? Also what is the lift on the cam? IMO with those heads you will want > .58X at least... Personaly i would go with > .6xx

 

well i can only speak from what i have seen by running 4:56's my mileage hasnt been hurt in the least, but then i do a lot of stop and go kind of driving. it hardly ever see's the highway. at around 60 mph my tach is at 2100 rpm

 

the lift on the cam is .566 .568. the tune was done by synergy, the cam was spec'd for those heads by Leading Edge Performance

 

i had that exact cam with the same heads, i did not like the performance at all... I swtiched to the cam in my sig and it was ALOT better...