Cam with stock heads

[trendkilllx]

edited, already posted.

 

[ECU5.0]

ive asked the same thing before....you might get some valve float due to worn out springs and it will help...but the stock heads really restrict the air flow of all the air your intake will be pulling into the engine...talk to thumper460...he knows all when it comes to head......thats just about what most people are gonna say....im goin with a cobra intake for now..and hopefully get some thumper heads in the near future