Review on Rev up Performance: Competition Cams 2100 Magnum Double Row Timing Set for '78-'86 Chevrolet V6 and 265-400 Small Block by Kyle Hoes

**Headset #2100 NOT suitable for MY 1987 engines. with factory roller cam. factory hydr. Roller cam according to the instructions accompanying part #2100 (trying to include this in the drawing. Apologies for the poor picture quality. The blue button indicates an area on the back of the cam that requires pitch machining to match the cam nose style of the to suit OEM) . I purchased this #2100 timing set specifically because of the clear answers to 3 out of 3 customer questions asked on this product page regarding the fitment of factory hydraulic roller cam / Vortec engines that said this timing set would fit. NOT CORRECT! And the Revains product description says nothing about the fit. Send it back tomorrow. Looks like a few more days on the workbench before this motor is ready.