pete88gt

How do you advance the timing on the 5.0 HO motor? What would be a safe timing to advance to? 12* 15*??

51derrill

Look into a Tuner1 Diablo predator works well for me and several friends. It includes optomized tunes for 87,91 and 93 Octane, with the ability to adjust timing and several other parameters.
Best/ Bill

Venomantidote95

the cheaper way is just get a timing light and remove the timing spout and adjust accordingly, depending on the octane you will run is where you want your timing and also what your engine likes, just be cause my buddy runs his on 15* dont mean my car will like it , it is a case by case basis!
just changing the timing doesnt call for any other modification!
ie: my car loves 10* and i also leave it on 10 casue that is what my chip calls for and i can just open the bottle and spray with ease on 10* on 93oct!

07gttom

get under your car, mark the balancer with paint at different degree spots(12,14,16,18 btdc...ect) with different colors(stock should be 10 degrees BTDC). get a timing gun from auto zone(should be under 20 dollars) hook the connector up to the spark plug wire on the #1 cylinder as close to the spark plug as possible, pull the chip that connects into the distributor, loosen the distributor up(there is a bolt that holds in into place) start car, shoot the gun so the light hits the balancer, turn the distributor till you hit your desired paint line. tighten distributor bolt, shut off car, reconnect chip. have a nice day. when running more timing, you have to run 93 octane fuel. alwayslisten for detonation

Venomantidote95

if you dont want a rainbow on your balancer get a real timing light and mark the balancer on 0* and set your light to the desired * much easier and less waste of time! and you wont be a rainbow warrior!

Jfsram

Good safe advice but with the price of fuel I will be the first to tell you. 93 octane is not neccessary.

I have a 93 stoker with minor bolt ons. I've ran 13, 14 and 15 deg with 87 octane. My et and mph gains were dimishing at 15 so I presently run 14.

For what it's worth in power. My advice is to run the timing higher and higher with the lowest octane possible until performance suffers. This is only for 5L's. Other engines will need there own testing.