I am replacing cam timing gears with new double roller that are keyed three ways: retarded, straight up, and advanced. I understand retarded IS retarded, some recommend straight-up for +30-40 hp and better economy, but now wonder about merit or disadvantages of advanced setting option! Please help as mechanic is beginning job (good mechanic but I appreciate second opinions).

 

If you have a stock or mild cam then the gears should be timed straight up.

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I timed mine straight up and love it.

 

Thanks for the advice on straight up timing for 76 460. Mechanic could not remove oil pan without major effort and additional cost so he used high pressure water to blow out oil pan-he's waiting for it to dry. Should I shoot him now or wait until the engine ????