'Pop's Engine' another 440 on the dyno.

RPM..............346 w/ big valves..............M1 & 2" spacer

3000.................426TQ/243HP....................410/234
3100.....................435/257.......................417/246
3200.....................446/272.......................436/266
3300.....................467/293.......................459/288
3400.....................478/309.......................478/309
3500.....................492/328.......................476/317
3600.....................503/345.......................484/332
3700.....................503/354.......................492/347
3800.....................505/365.......................503/364
3900.....................506/376.......................501/372
4000.....................509/387.......................505/384
4100.....................506/395.......................501/391
4200.....................503/403.......................502/401
4300.....................497/407.......................499/409
4400.....................491/411.......................503/422
4500.....................485/416.......................499/428
4600.....................482/422.......................496/435
4700.....................484/433.......................506/452
4800.....................490/448.......................507/463
4900.....................491/458.......................517/483
5000.....................496/472.......................518/493
5100.....................494/479.......................516/501
5200.....................486/482.......................511/506
5300.....................496/500.......................517/522
5400.....................503/517.......................522/537
5500.....................499/523.......................515/540
5600.....................492/524.......................503/537
5700.....................473/513.......................489/531
5800.....................459/507.......................471/520

Not too bad for an 8.9:1 compression 440 with factory iron heads and a XE285HL camshaft.