timing

[crashedu182]

i got what a homemade truck more or less its a 78 bronco frame and a 79 f150 body it haqs a 400 mod under the hood any 1 know what the timing should be set at? it may sound dumb but i'm learning bout this truck,dont know much bout it at all any help would be good thanks

[J-Roc]

Somewhere around 8 degs BTDC. Try going 12 degs., but if it starts to ping, back it down to 8-10...Good luck!