blown 440 timing help...

update my fault i had the timing marks off...doubled ckd 0 and 12 with the light and timing tab..all is correct..thanks for the help...a? my blower inst say An ideal distributor has 9 degrees mechanical advance in it (18 degrees at the crankshaft). We recommend starting the advance at 1200 rpms and have full advance at 3000 rpms. In most cases, small block V8's run 34-36 degrees of total advance for street applications. With 36 degrees total, the initial should be 18 degrees at idle and will advance to 36 degrees above 3000 rpms. now i talked to the blower guy he saying to lock out the dis and set the timing to 28....i have it at 12 now...not racing the car...should i go up to 18?