Discovered that the ZZ4 when using roller cam, and roller lifters uses a SHORTER pushrod . This combo uses 7.2" rods. Figure this into your future build if going to the ZZ4 or a roller block.
Oh yea, also used a different flexplate.
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1985 Coup -ZZ4 balanced, LPE 74211 cam, AFR 180 heads, SuperRam base, runners & plenum, cut out air box, K & N filter, power coupler, 52MM TB, March pulleys, AFPR, Accel injectors, Walbro FP, 1.6 RR, chip by TJWONG, 160 stat, cut back plugs, 8.5MM MSD wires, Brute Thunder Coil, custom camber-brace,TRANSGO shift kit, 2400 stall converter, cross drilled rotors, SS brake lines, VBP camber rods, IAS Edelbrock shocks, custom crossover on exhaust, Magnflow cat, 3.07 gears, 13.2 @107.2 MPH in 1/4