my setup consist of:

stock lq4
stock 317's
circle D 3200
342's
front mount s475 1.10 a/r
5' merged to 4' downpipe
10-15psi


now i have these two cams, one is from a member on here and the specs are

228/222 .581/.588 115lsa

the next cam i bought from a local member which is an Hke custom cam for a front mount 5.3.

227/222 .614/.610 115+3 lsa

which do you think will work better for my lq4 motor as far as performance wise. i know the custom hke cam works very well since it put down 520rwhp in a stock 5.3 on 9psi but will the results be the same for a 6.0 being that it has more cubes?

another question is what exactly is +3 degrees advance? what does that do to the cam? what are the differences of a 115lsa and a 115 +lsa performance wise?

 

The +3 advance will give you slightly better low end. In effect the advance moves the power curve down slightly. Power should be the same with and without the advance it will just make the power sooner with the advance. If that makes any sense. Seeing as though you are on stock heads I doubt you will notice any difference between the two. I have a feeling by the specs the HKE cam is on a more aggressive lobe so it may result in less overlap which is good for boost. JMO.

 

i ran this on om my hke 346 and it work awesome. 234/232 and it made 709 HP and 769 TQ to the wheels with 14 psi on a mustang dyno. i also ran this cam on my stock 5.3 228/226 and i made 649 hp and 679 tq on 16 psi