360 cam

Okay thanks a lot for your reply. I am wondering why u say I will need rhoades lifters and not use the lifters that come in this kit?

Because Rhoades are variable duration and bleed down below 3500 RPM to take out about .025" of lift and 15° of duration to make the cam run smoother at idle... They increase idle vacuum and low and mid range without sacrificing mid range and top end... It's like having an adjustable cam almost and you get to have your cake and eat it too... I've been using them for over 30 years on daily drivers and put over 200,000 miles on engines with them.. They still work even with high pressure high volume oil pumps...

I installed a MP 484/284 cam in my Barracuda and with standard lifters, it wouldn' idle below 1100 RPM with 11" HG at idle... I then installed Rhoades lifters in that engine and was able to get it to idle at 800 RPM with 13" - 14" hg vacuum....

I put a stock 340 cam in a 318 with rhoades lifters and with 318 heads, it idled at 24" Hg vacuum... Then swapped the 318 heads with a set of 360 heads and it idled at 22.5" hg Vacuum... I got 17.75 MPG out of it with a 2.76 gear on a daily driver...

The higher the vacuum, the more velocity in the port... As a great head porter that I talked to once said, "velocity is torque"....

Here's the main page for them:

Rhoads Lifters

Here's the articles to describe how they work, the second one is the better one to read, but I would recommend reading both:

Articles

Don't go with knock offs, if you want to run variable duration lifters, go with Rhoades...