ok like the title says i did a search and couldnt find anything about it on here but i was just wondering if anybody was running a kms engine development valvetrain? or has anybody heard anything good or bad about them? any info would be greatly appreciated

 

KMS carries Supertech stuff couple years back, i don't know about now. I have a set of Dual Valve springs and titanium retainers i bought from KMS 3-4 yrs. back, it's the same part number from Supertech SPR-H100DR , but it didn't have the Supertech logo on the bag. But it works pretty good, had a Poor man's Type R motor with the valve springs and retainers that I bought from KMS along with skunks stage 2 cams making power up to 9,200rpm no problem.

 

ok thank you for your info