If you were running a comp 216 220 525 532 cam, would you run these springs?SDPC Kit are they reliable or should i just stick to the comp 918's, the Price is good on the sdpc kit, which is the only reason i am considering it, but i dont want to compromise reliability. can anyone give me some opinions/experiences..

 

...go with the SDPC units...especially, if you have a high lift cam...

 

Hi,
The Manley springs have a higher rate and about the same seat pressure as the 918's. I have run them to 7k with stock valves. The 918's may be a little easier on you valve guides because of the lower opening pressure.
Good luck,
Steve

 

im running that kit on my T1 and i ran it on my old 230, never a problem with either cam. great kit for the price.

 

this is the set i am going to get next when i swap out my non stripe 918s