Mine makes 50 more on stock heads and cam wassssup

 

You technically don't own a 5.3L

 

^ What he said! You Bully!!

 

Technically speaking lol stock heads n cam! Can't help that I have a 4.8 factory freak (ive fibbed at track about being a 4.8)

 

Your truck sounds 200% cooler than mine though

 

Ok, thanks for the feedback. The only reason I was worried is because the 220 dyno number was after the cam swap and tune at first. Turned out I needed the longer push rods and degreed the cam myself with a new double roller adjustable timing set. Not sure what it would have dynoed stock but 275rwhp is what I ended up with after the mods.

It was a dynojet dyno at a local performance shop. The headers are flowtech shorties and the y-pipe is aftermarket with the cats hollowed out for those that were wondering.

Thanks
Scott

 

All bark, no bite!